A classification of current-mode single-amplifier biquads based on a voltage-to-current transformation

Using a simple and well-known voltage-to-current transformation, current-mode active RC filters that are amenable to IC realization can be derived from their voltage-based counterparts. Using this transformation, a classification of current-based single-amplifier biquads is introduced which is derived from a similar voltage-based classification. This classification is exhaustive in that it includes all possible current-based single-amplifier biquads.<
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